Cornelius married Elizabeth Wyckoff, daughter of Cornelius Simonse Wyckoff and Elizabeth Anderson, in 1769 in New Jersey. (Elizabeth Wyckoff was born on 8 Jan 1750 in Readington, Hunterdon County, New Jersey, died on 9 Sep 1801 in White House, Hunterdon, New Jersey, United States and was buried in Haypress Cemetery, Whitehouse Station, Hunterdon County, New Jersey.)